


| Dead weight | 2,210 | MT |
| Length | 80.8 | mtr |
| Breadth | 12.2 | mtr |
| Depth | 5.3 | mtr |
| Propulsion | Naval - Polar M 48 M | |
| Potencia | 1.280 | H.P. |

| Shipyard / Year | S.P. Austin & Son / 1912 | |
| Name | Hillingdon | |
| Name / Year | Corbrae / 1920 | |
| Name / Year | Nagos / 1934 | |
| Owner / Year | Gobierno Español / 1937 | |
| Name | Huelva | |
| Owner / Year | Gerencia de Buques Mercantes / 1939 | |
| Name | Castillo Monforte | |
| Owner / Year | Empresa Nacional Elcano / 1942 | |
| Name | Castillo Monforte | |
| Owner / Year | Marcosa / 1965 | |
| Name | Jalon | |
| Dead weight | 3,920 | MT |
| Gross register | 2,667 | GRT |
| Length | 97.8 | mtr |
| Breadth | 13.2 | mtr |
| Depth | 5.9 | mtr |
| Propulsion | Reciprocating triple expansion | |
| Power | 1,500 | H.P. |
| Bought | 1965 | to |
| Owner | Marcosa | |
| Name | Jalon | |
| Scrapped | Bilbao - 1969 | |



| Shipyard / Year | Scheeps de Klop / 1921 | |
| Dead weight | 7,165 | MT |
| Gross register | 4,904 | GRT |
| Length | 112.0 | metros |
| Breadth | 15.3 | metros |
| Depth | 9.2 | metros |
| Propulsion | Reciprocating triple expansion | |
| Power | 1,480 | H.P. |
| Bought | 1968 | to |
| Owner | Naviera Astur | |
| Name | Bahia de Palma | |
| Scrapped | San Esteban de Pravia - 1975 | |


| Shipyard / Year | Gray & Co. / 1937 | |
| Dead weight | 7,800 | MT |
| Length | 120.9 | mtr |
| Breadth | 16.2 | mtr |
| Depth | 8.2 | mtr |
| Propulsion | Reciprocating triple expansion | |
| Power | 1,500 | H.P. |
| Speed | 9 | knots |
| Bought | 1971 | |
| Scrapped | 1976 | |


| Shipyard / Year | S.E.C.N. - Sestao / 1944 | |
| Dead weight | 3,500 | GRT | Gross register | 2.559 | TRB |
| Length | 90.2 | mtr |
| Breadth | 12.7 | mtr |
| Depth | 6.7 | mtr |
| Propulsion | Reciprocating triple expansion | |
| Power | 1,000 | H.P. |
| Bought | 1973 | to |
| Owner | Compañía Marítima Zorroza | |
| Name | Alava | |
| Scrapped | Bilbao - 1977 | |


| Shipyard / Year | S.E.C.N. - Sestao / 1944 | |
| Dead weight | 3,500 | GRT | Gross register | 2.559 | TRB |
| Length | 90.2 | mtr |
| Breadth | 12.7 | mtr |
| Depth | 6.7 | mtr |
| Propulsion | Reciprocating triple expansion | |
| Power | 1,000 | H.P. |
| Bought | 1973 | to |
| Owner | Compañía Marítima Zorroza | |
| Name | Ayala | |
| Scrapped | Bilbao - 1977 | |
